Print-conveying conduit for cameras



H. T. DALBERT.

PRINT CONVEYING CONDUIT FOR CAMERAS. APPLICATION FILED JULY 28, 1917.

. 1,358,622 Patented Nov. 9,1920.

UNITED STATES PATENT OFFICE.

HENRY '1. DALBERT, OF ARLINGTON, VIRGINIA, ASSIGNOR T0 GRANT LEET, OF WASHINGTON, DISTRICT OF COLUMBIA.

PRINT-CONVEYING CONDUIT FOR CAMERAS.

Application filed July 28,

To all to 7mm it may concern Be it known that I, HENRY T. DALBERT, a citizen of the United States, residing at Arlington, in the county of Alexandria and State of Virginia, have invented certain new and useful Improvements in Print- Conveying Conduits for Cameras, of which the following is a specification.

My invention relates to carrying conduits for photographic cameras and comprises a carrying conduit adapted to take the sheets or films from a photographic copying camera or other similar apparatus to a darkbox, receptacle, or other such place where they may be stored pending further treatment, as may be desired. The conduit is provided with a suitable conveyer mechanism to carry the exposed photographic paper 01' films from the camera to the receptacle. The primary object of my invention is to enable the operator to obtain the maximum number of exposures from the camera by avoiding any delay incident to having the prints developed in the camera itself.

In the accompanying drawings Figure 1 is a view partly in side elevation and partly in section illustrating the device embodying the present invention,

Fig. 2 is a top plan view of the device, the camera being removed,

Fig. 3 is avertical longitudinal sectional view through the receiving end of the conduit.

Fig. 4 is a vertical longitudinal sectional view illustrating a modification of the in- "ention.

The numeral 1 represents an ordinary type of photographic copying machine and the numeral 2 indicates my improved lighttight carrier, it having the two sets of carrier tapes 3 and 4 arranged to travel therein over rollers 5, 6, 7, 8 and 9. Rollers 5 and 6 have gears 26 and 27 thereon for imparting motion from roller 5 to roller 6. The inner leads of the tapes consequently travel together, and are adapted to receive sheets therebetween and carry them from one end of the carrier to the other, as shown in Fig. 1.

The tapes are driven in any approved manner, but preferably through a sprocketwheel 10 on shaft 5 and chain 11 extending to a sprocketwheel 12, which latter is turned by a crank or other means 13. Guide Specification of Letters Patent.

Patented Nov. 9, 1920.

1917. Serial No. 183,359.

fingers 14 direct the sheets as they are severed from the roll by the usual cutter 15 between the forward ends of the carrier tapes 3 and 4 whence they are conducted through the carrier, and expelled at the outer end between rollers 7 and 9 over a curved guide 16 into the dry-box 17 or other receptacle, as the case may be.

The top of the dry-box 17 is connected to the bottom by hinge 17', so that it may be opened at any time to gain access to the interior, and the entire top 2 of the carrier is capable of being removed at any time in order to get to the parts within.

Referring to Fig. 1, the crank 23, ratchet 24 and pawl 25 provide for the independent operation of the carrier, so that the exposed portion of the roll or cut sheets may be carried to the place of discharge after the severance of the last exposed sheet, without disturbing the unexposed portion remaining in the photo-copying machine. This crank 23 is secured to shaft 5 as well as to a ratchetwheel 24, which engages with spring pawl 25 on the outside of the sprocket 10, which imparts motion to shaft 5 when carrier is operated by the photo-copying machine.

The pawl 25 and ratchet 24 admit of the sprocket 10 turning when driven by sprocket-chain 11, and of the rollers 5 and 6 being driven independently thereof.

In Fig. 3, the carrier is shown as leading directly to a receptacle 28, and in connec tion with this a dark-box 29 is removably attached to receive the sheets from the receptacle. To remove these sheets from the receptacle 28 and place them in the dark box 29, an orifice 30 is provided in the side of the receptacle, and this is protected by means of a sleeve 31, which hangs over the orifice 30, in the outer end of which sleeve the operator first inserts his hand, and thence through the orifice 30, thus preventing the light from entering the receptacle and the sheets from becoming light-struck.

In the feeding of the sheets, the feed of the sheets from the photocopying machine or other photographic apparatus is slightly greater than the feed of the belts in the carrier; and, furthermore. since the sheets come from a roll, they are slightly curved, and as they enter the throat of the carrier their upper ends are held forward by the deflecting hump 33 in the guide-fingers, so

that the lower edge of the next following sheet underlapsthe upper edge 01 the preceding sheet for a short distance, and in this condition they arecarried through the cor rier and ejected there-irom' or are finally discharged over the curved guide 16 in the darkbox, or other receptacle, as shown in Fig. 1.

The carrier and storage receptacle increases the capacity of the camera approximately ten times or 1080 per cent. by reason of the :tact that with development carried on in the photographic copying machine the exposed sheet must be retained in the developer until development is complete (usu ally from thirty seconds to one minute) and subsequently exposed sheets cannot bepassed into the developer unt'l the previous one removed therefrom, where s l in ens of the carrier and receptacle the )osed sheets or films are automatically removed as rapidly exposures can be made which is normally iroin'three to live seconds.

l claim:

1. ii device fo transferring sensitized photographic media, aid device comprising an elongated conduit closed to actinic light rays and provided at one end with a passage-way through Which the media may be introduced into the conduit, a receptacle at the other end of the conduit, and upper a d lower endless conveyer belts operating will in. the conduit lengthwise thereof to carr the media between their adjacent stretches iri'nn the receiving end of the conduit to the said receptacle.

2. A device ior transferring an, photographic media, said device compa conduit closed to uctinic light ranged at one end to receive the media from an exposure ap iratus and at its other end to discharge into a receptacle, and upper and lower conveyor belts operating longitudinally in the conduit and having their adjacent stretches juxtapositioned to receive the media between them and l'rictionally engage the same to carry it through the con duit in the operation of the belts.

3. The combination with an exposure apeluding receptacle separably conn c with the conduit and into which the e nosed media may be placed upon remo'a 'el u conduit, the conduit hating and means providing a ll li g ht rays through said ope .roni the 1. 1o combination with an paratus embodying means therefrom sensitized med) exposed thereby of means operable to conduct the deli -rcred media from the apoaratus. means for opcrating the conducting means in colsounnce with and at a slower speed than the deiivering means, whereby the media will be caused to overlap, and means coacting with the conducting means to assemble the media in overlapped relation.

A device for transferring exposed reusitized photographic media from a cxoosure apparatus to u receptacle, said device con pris g a conduit closed to actinic and arranged at one end to deliver the edia, the conduit being provided at l; end with an opening receive the n, (lQllVQl'eCl iroin the exposure ap iara" s, and means operating Within the conduit to em gagethe media as delivered tl'irough the opening and to conduct the same throng-l the conduit and dischargeit from the firs mentioned end or the conduit,

in testimony whereof I atlix my signature.

HENRY "l oi'lliBEltl.

be M 

